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Registered
Join Date: Nov 1999
Location: Montreal, Canada
Posts: 728
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injector flow rates
Does anyone know the exact flow rates of the 944t and turbo s injectors?
Thanks Mike |
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12-22-2000, 02:26 PM
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Join Date: Jul 2000
Location: bergen county
Posts: 459
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i believe it is a 42lbs.
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12-22-2000, 05:16 PM
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Join Date: Oct 2000
Posts: 495
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My 86 na loads up when I start it when it is cold and chugs and blows black smoke ot for a bout a minute then clears up and runs fine. Most think it is a leaking injector or maybe several. The car has 195,000 on it and I drive it every day. It doesn't do it as bad the warmer it is and in summer hardly at all or bacicly none. Wouldn't a leaking injector do it the same no matter the outside temp? Anyone else had this prob?
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12-22-2000, 05:22 PM
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Join Date: Sep 2000
Location: Shreveport, La.
Posts: 1,710
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sounds like the cold start injector. Do you ever run techron in fuel? Might try a bottle of techron on next fillup.
------------------ Robert Stoll 83 SC 83 944 |
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12-22-2000, 06:28 PM
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Moderator
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The 944s do NOT have an extra injector...
But I believe it could be an auxilary air valve, or a temperature sensor. How's the compression? Ahmet ------------------ It's all the driver... |
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12-22-2000, 11:37 PM
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Join Date: Sep 2000
Location: Shreveport, La.
Posts: 1,710
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Sorry, must have been in 911 mode.
------------------ Robert Stoll 83 SC 83 944 |
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12-23-2000, 05:30 AM
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Join Date: Nov 2000
Location: Toronto Ont. Canada
Posts: 8
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Hey Guy,
The problem that you describe is identical to what I have with my 944 n/a...right down to the temp. I had the injectors (only 4) checked for bleed...but that came back negative...however I have been advised that a warm bench test will not likely be accurate as the problem happens at lower temps. For me it happens below about 3C. |
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12-23-2000, 04:57 PM
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Join Date: Oct 2000
Posts: 495
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Hi Joe, see if this is like yours, I'll explain it a little better here. OK now, the car starts great and no flooding on start up, hits and starts right up fine. Then in a couple seconds it gets really rich and chugs and puffs black smoke for about 20-30 seconds and clears up and runs fine. I Thought a leaking injector but pulled my plugs after startup and they were all 4 totally black. The colder it is the worse it is. I have checked and an '86 doesn't have a cold start injector. Would the engine temp sensor be causing this? All 4 injectors wouldn't go bad at once. The computer has to be saying ricken up and then quits after 30 sec.
If the injectors were leaking off all 4 plugs would not be black, just the one or ones with the bad injector and startup would be hard because the cylinders would be flooded, starts perfect and then gets rich. [This message has been edited by T86951 (edited 12-23-2000).] |
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12-23-2000, 05:12 PM
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1984 Porsche 944 2.5 liter, 8 valve 
